Fatal error: Uncaught Error: Class "Illuminate\Database\Migrations\Migration" not found in C:\WebServer\htdocs\bookshelf\database\migrations\2021_03_08_215138_add_user_slug.php:9 Stack trace: #0 {main} thrown in C:\WebServer\htdocs\bookshelf\database\migrations\2021_03_08_215138_add_user_slug.php on line 9